Question

When backing instruments stop playing while the vocal line continues, and
then join back in on the following second, third, fourth, and first beats, it is
know as a

Answer 1

The musical connotation that is described in the question above is called Percussion Break.

Uses of (Percussion) Break

This is used to create a sense of anticipation of the new section hence creating an arrangement that can best be described as colorful to the ears.

In some songs, breaks are important because it highlights the rhythmic underpinning.

When the backing instruments or percussion ceases, the mind automatically anticipates its return.

See the link below for more about percussion: https://brainly.com/question/629175